After retiring from privateering, he settled in Kingston and entered the slave trade, seeing it as a more profitable venture than military service. This made him as a target for the local Assassin Brotherhood.[1]

Templar ally

In 1716, with the approval of Jamaican governor Archibald Hamilton, Prins expanded his slavery operations to Mexico, where he attempted to capture several Assassins at their stronghold in Tulum. However, the soldiers serving under his command were killed by the pirate Edward Kenway and Assassin Mary Read, Prins' prisoners were freed, and the operation failed.[1]

Death

In January 1717, word reached Prins that Torres was still actively seeking Roberts, who had recently begun working under Prins' employ. Seeing a possibility for financial gain, Prins contacted Torres and offered to sell Roberts to him for a hefty ransom.[1]

Prins met Torres at the Kingston docks that April, and led the Templar through the city to a safe place to make the exchange. Along the way, they were tailed by Kenway and Read, who both sought to claim Roberts for themselves. After discussing slavery, religion, politics, and Prins' past, the two men finally reached a secluded area. Torres offered part of Roberts' ransom to the slaver, but Prins refused, having noticed that they had been followed by Kenway and Read. He then called a group of guards and made his escape, narrowly avoiding death at the hands of Read.[1]

Frightened by the attack, Prins secluded himself inside his mansion the following day. That night, as he stood in the garden of his mansion, Prins was assassinated by Kenway, who had infiltrated the grounds to free Roberts. With his last breath, Prins dismissed Kenway's notions about his motivations, claiming that all he had ever sought was wealth.[1]